You can make a file available to the safe location using the following POST request:
. . /api/v3/MakeUploadAvailable
The following example request makes the file named abc available to the safe location.
{
"Filename" : "abc"
}
The response contains a Boolean "value": true indicating that the file was made available.
You must supply the JSON representation of the file that was previously uploaded. This is the Uploadid obtained from the Upload API.